Use -v, -vv, -vvv to configure tracing levels

[zanieb]

Right now, as mentioned in #1567, we show a lot of output in -v.

We should have -v be more user friendly and use -vv and -vvv to dump more verbose tracing information.

[olivierlefloch]

I may be missing something, but related to this, it would be great if the -vvv level also displayed calls to trace, for example to debug

#1458

I'd like to be able to see the method that fresh_request invoked. I'm not familiar enough with ruff's tracing/logging, but perhaps

uv/crates/uv-client/src/cached_client.rs

Line 389 in 3b70b42

trace!("Sending fresh {} request for {}", req.method(), req.url());

could be logged?

[zanieb]

You can control the log level during verbose mode with e.g. RUST_LOG=trace for now.

I totally agree though.

[olivierlefloch]

Thanks for the tip! Actually, that failed when running uv with RUST_LOG=trace python -m uv … but worked with RUST_LOG=trace uv … 👍

I'd suggest adding it to CONTRIBUTING.md as that's where I imagined I might be able to find this information: #1670

[zanieb]

The python -m ... issue should be fixed by #1667